EP1015268A1 - Multifunktionales ventil für einen fahrzeugtank - Google Patents
Multifunktionales ventil für einen fahrzeugtankInfo
- Publication number
- EP1015268A1 EP1015268A1 EP98951460A EP98951460A EP1015268A1 EP 1015268 A1 EP1015268 A1 EP 1015268A1 EP 98951460 A EP98951460 A EP 98951460A EP 98951460 A EP98951460 A EP 98951460A EP 1015268 A1 EP1015268 A1 EP 1015268A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- float
- multifunctional valve
- valve according
- closing
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/035—Fuel tanks characterised by venting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/035—Fuel tanks characterised by venting means
- B60K15/03519—Valve arrangements in the vent line
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0753—Control by change of position or inertia of system
- Y10T137/0874—Vent opening or closing on tipping container
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2931—Diverse fluid containing pressure systems
- Y10T137/3003—Fluid separating traps or vents
- Y10T137/3084—Discriminating outlet for gas
- Y10T137/309—Fluid sensing valve
- Y10T137/3099—Float responsive
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7287—Liquid level responsive or maintaining systems
- Y10T137/7358—By float controlled valve
- Y10T137/7404—Plural floats
Definitions
- the invention relates to a multifunctional valve for a vehicle tank with the features of the preamble of claim 1.
- a relevant valve has already been known, which is to be installed in the ceiling of a vehicle tank and combines at least the following functions in one assembly:
- a further, substantially smaller opening is provided in the valve, which is also used for operational ventilation, i. H. the outflow of fuel vapors when pressure builds up in the tank while the vehicle is moving or at a standstill.
- This small opening must also be closed when the fuel rises further so that no liquid fuel can rise in the ventilation duct. It is therefore assigned a valve body, which is also biased into the closed position with a relatively weak spring and is held open by the weight of a buoyancy body (density also greater than fuel density).
- the small opening should also be closed according to the same principle as for the large opening. For safe operation of the tank, it is important that a gas bubble is always retained as a buffer for pressure fluctuations above the liquid fuel.
- the high density of the buoyancy body in conjunction with the springs ensures that both openings are securely closed in the event of excessive inclination or roof position of the vehicle, because their weight or their output then add to the respective closing spring force. If the buoyancy bodies were designed as floats in the given configuration, then they would lift the flap or the valve body from the opening cross sections against the spring force just in the roof position, so that the tank would leak at these openings.
- valve In the known valve it can happen with very hesitant refueling that the gas bubble through the small ventilation opening Finally, completely drained above the liquid level and the tank is completely filled with liquid. In particular, the valve body only closes at a very high fill level, although it has apparently been assumed that the throttle resistance of the small opening will build up sufficient back pressure in the tank beforehand. This can cause the tank to overfill.
- the second opening is arranged away from the larger first opening, so that the assembly, which is inserted in the form of a lid in a recess in the tank top, takes up a relatively large amount of space overall.
- the assembly also includes a pressure relief valve, which has to protect the tank from damage when the pressure rises sharply. It essentially comes into operation when the temperature of the fuel rises sharply when the tank is full and the pressure of the gas bubble mentioned rises above the threshold value of the pressure relief valve. If the tank is already overfilled, liquid fuel can also escape.
- a pressure relief valve which has to protect the tank from damage when the pressure rises sharply. It essentially comes into operation when the temperature of the fuel rises sharply when the tank is full and the pressure of the gas bubble mentioned rises above the threshold value of the pressure relief valve. If the tank is already overfilled, liquid fuel can also escape.
- a ventilation and roll-over valve was also designed, which comprises a bell-shaped float with a closing body, in the interior of which is open at the bottom, a gas bubble is retained when the tank level rises, while the ventilation flow can pass the float on the outside.
- a ball is provided below the float, which outweighs the buoyancy of the float in the case of an incline or roof position and holds the closing body in the closed position.
- a second overflow opening is not provided in this valve.
- the invention has for its object to improve a generic valve.
- both openings can each be closed by floats carrying closing bodies, reliable closing is initially achieved when the liquid level rises.
- a separate mechanical actuation device is provided which counteracts the buoyancy of the float in this extreme situation, so that the openings can be securely closed against leaking fuel.
- the actuating device can comprise, in a manner known per se, at least one body, the weight of which is greater than the buoyancy force of the float body, and can therefore use a particularly simple solution.
- it can also comprise a further float, a deflection mechanism being connected to the further float, which transfers its buoyancy force in the rollover case to the two float bodies against their buoyancy force.
- both float bodies are held together by a single device in the closed position of their associated closing bodies.
- This in turn can be achieved in a particularly space-saving manner if the two openings or the floats are arranged coaxially with one another. Space-saving you can then make the second opening in the first float body when this z. B. is bell-shaped and forms a guide for the second float body. This also meets the requirement for the smallest possible lateral expansion of the overall valve.
- a lagging closure of the second opening can be effectively provided by floating the second float more slowly than the first. This is achieved e.g. B. by making the second float from a slightly higher density material.
- both float bodies can be guided in a cup-shaped guide with a conical or concave arched bottom, the interior of which communicates fluidically with the container.
- the shape of the bottom then forms the roller guide for the weight body already mentioned for closing both ventilation openings.
- the roll-over function is particularly reliable even over long periods of use if a ball is arranged between the bottom and the underside of the float body, the diameter of which is coordinated with the bottom and the distance between the underside of the float body and the bottom so that both closing bodies are mechanical are brought into the closed position before the ball comes into contact with the side of the guide. This reliably prevents both ball jamming and unwanted noise. Because the ball is constantly wetted by fuel as it rolls down the curved bottom, the friction between its surface and the underside of the float is negligible.
- a float valve is available that enables the tank to be ventilated and vented, protects the tank against impermissible overpressure and overfilling, has a dip tube switch-off (build-up of sufficient counterpressure when refueling after reaching the permissible fill level to automatically switch off the nozzle) and a roll -over- includes function.
- the valve consists of a double float (external and internal float) which, depending on the level, close the refueling and operating vents one after the other or open again when the level drops.
- a roll-over ball is arranged under the floats, which in the case of any inclined or overhead position of the tank overcomes the buoyancy forces of the floats and closes the valve.
- FIG. 1 shows a section through a multifunctional valve with two coaxially arranged float bodies in the fully closed position
- FIG. 2 shows a detail from FIG. 1, in which a first (vent) opening of the valve is opened
- FIG. 3 shows a detail from FIG. 1, in which a second (ventilation) opening of the valve is opened
- Figure 4 is a sectional view of the valve corresponding to Figure 1, but with the vehicle at an angle, both openings being closed by means of a mechanical device.
- a multifunctional valve 1 is formed in a holder 2, which can serve as a lid of an opening in the ceiling of a container, not shown, for. B. a fuel tank of a vehicle. With a flange 3, the holder 2 rests on the edge of this opening, possibly locked with the interposition of a seal or welded pressure-tight. 4 with a liquid level in the container is designated.
- the holder 2 forms a bell-shaped open space 5 towards the container 5.
- a cup-like guide 6 is arranged approximately in the middle of this space and is fastened to the body of the holder 2 approximately in the plane of the flange 3. It has a dome-shaped, concave base 7, in which holes 8 are provided. Shortly below its upper edge, it also has large openings 9. The interior of the guide 6, which is open at the top, opens into a ventilation opening 10 which is continued in the body of the holder 2.
- 3 different channels are formed in the holder 2 above the flange, which lead to an activated carbon filter (not shown) for separating hydrocarbon particles from the ventilation flow.
- a pressure relief valve which is known per se and is not shown here, is also arranged in the holder 2 and also communicates with the container contents. graced and excessive - e.g. B. temperature-related - pressure build-up opens to prevent damage to the container.
- a first float body 11 is linearly guided up and down. It has an approximately bell-shaped cross section, open at the bottom, with a hollow cylindrical interior 12. Its upper end or the ceiling of the interior 12 forms a conical closing body 13, which is assigned to the ventilation opening 10 and, in the closed position shown here, seals against the edge of the ventilation opening 10 is present.
- the closing body 13 carries an elastic sealing ring 14 to improve the sealing effect.
- a ventilation opening 15 is provided centrally in the ceiling of the interior 12. This has a small cross-section and therefore a defined throttling effect. Openings 16 are again provided in the side walls of the first float body 11 below the ceiling, so that the interior 12 in connection with the holes 8 in the bottom of the guide 6 is always completely pressure-balanced.
- a second float body 17 is guided coaxially with the first float body. At its conical upper end it is designed as a second closing body 18 - also equipped with a sealing ring if necessary - which corresponds to the ventilation opening 15 and closes it tightly in the position shown here.
- a ball 19 is locked in a freely rolling condition.
- Their diameter is so with the dome-shaped bottom 7 and the distance between the two float bodies 11, 17 in their closed position Measure that the ball holds both float bodies securely in the closed position before it comes to rest on the side edge of the guide 6 (see FIG. 4). This also prevents the ball from striking the side edge of the guide and thus the generation of undesirable noises.
- the ball only needs to touch the underside of the inner float body 17, the outer float body is then raised indirectly via the second closing body.
- the ball 19 is so heavy that its weight surely outweighs its own buoyancy and the buoyancy of both float bodies even in the event that the container is tilted by 180 °, i. H. upside down.
- the position of the valve according to FIG. 1, in which both the ventilation opening 10 and the ventilation opening 15 are closed, is set automatically when the tank is at the permissible level, i.e. when the liquid level 4 is high, due to the buoyancy of the two float bodies 11 and 17 (filling stop Function or immersion tube shutdown). It also occurs when the container is inclined or upside down (FIG. 4) (roll-over function).
- Both float bodies 11 and 17 are guided - z. B. by longitudinal ribs with intermediate grooves - that a vertical pressure equalization is always possible along their sides. You can the guide 6 z. B. also perform in a conventional manner as a basket.
- the vent opening 10 is open. This is always the case when the fill level has dropped and there is little or no buoyancy on the two float bodies and also no inclined position of the container according to FIG Filling the container or rising the liquid level 4, the displaced air-fuel vapor mixture can escape through the openings 9 and the vent 10 towards the activated carbon filter according to FIG.
- the position of the second float body 17 is irrelevant. However, it will be designed by the choice of material (density) or its own weight so that it floats later than the first float body. In the position shown here, the underside of the float body 17 rests on the ball 19 and the first float body 11 is supported on the second closing body due to weight, so that the ventilation opening 15 is closed.
- the first float body 11 When the liquid level 4 approaches the permissible fill level, the first float body 11 then rises in the guide 6, as shown in FIG. 3, and closes the vent opening 10 by means of its closing body 13 and the sealing ring 14. At the same time, however, the vent opening 15 remains open, so that it continues a throttled vent flow can escape. According to FIG. 3, this flows through the openings 9 in the guide 6, the openings 16 in the first float body 11 and the ventilation opening 15 into the ventilation opening 10.
- the pressure relief valve mentioned only opens at a pressure which cannot be achieved by fuel that is supplied without pressure.
- Outside air for operational ventilation of the container during the withdrawal of fuel can also flow in the position according to FIG. 1 via a separate ventilation (eg on the tank cap).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742469A DE19742469C2 (de) | 1997-09-26 | 1997-09-26 | Multifunktionales Ventil für einen Fahrzeugtank |
DE19742469 | 1997-09-26 | ||
PCT/EP1998/006076 WO1999016633A1 (de) | 1997-09-26 | 1998-09-23 | Multifunktionales ventil für einen fahrzeugtank |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1015268A1 true EP1015268A1 (de) | 2000-07-05 |
EP1015268B1 EP1015268B1 (de) | 2002-07-31 |
Family
ID=7843679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98951460A Expired - Lifetime EP1015268B1 (de) | 1997-09-26 | 1998-09-23 | Multifunktionales ventil für einen fahrzeugtank |
Country Status (7)
Country | Link |
---|---|
US (1) | US6347640B1 (de) |
EP (1) | EP1015268B1 (de) |
JP (1) | JP4262409B2 (de) |
KR (1) | KR100548671B1 (de) |
DE (2) | DE19742469C2 (de) |
MY (1) | MY122389A (de) |
WO (1) | WO1999016633A1 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29810977U1 (de) * | 1998-06-19 | 1998-08-20 | Rietbergwerke GmbH & Co KG, 33397 Rietberg | Schwimmerventil |
JP2002525661A (ja) * | 1998-09-10 | 2002-08-13 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | マトリックス表示装置 |
DE19956932A1 (de) * | 1999-11-26 | 2001-05-31 | Bayerische Motoren Werke Ag | Ventil und ein mit einem Ventil versehener Kraftstoffbehälter eines Kraftfahrzeuges |
JP2002061765A (ja) * | 2000-06-08 | 2002-02-28 | Toyoda Gosei Co Ltd | 燃料遮断弁 |
KR100461396B1 (ko) * | 2002-08-12 | 2004-12-13 | 현대자동차주식회사 | 차량용 다기능 연료밸브 |
DE10257223A1 (de) * | 2002-12-07 | 2004-06-24 | Volkswagen Ag | Tankventil |
US7225826B2 (en) * | 2003-12-04 | 2007-06-05 | Moeller Marine Products | Marine fuel tank vent valve |
US7207347B2 (en) * | 2004-08-23 | 2007-04-24 | Raval A.S.C. Ltd. | Dual function valve for fuel tank |
US7422027B2 (en) | 2004-12-03 | 2008-09-09 | Tony Riviezzo | Marine fuel tank vent valve |
WO2006108223A1 (en) * | 2005-04-11 | 2006-10-19 | Geoffrey Francis Herlihy | Vent valve |
AU2006235205B2 (en) * | 2005-04-11 | 2012-05-17 | P.I.H.A. Pty Ltd | Vent valve |
JP2008538601A (ja) * | 2005-04-20 | 2008-10-30 | ビーイー・インテレクチュアル・プロパティー・インコーポレイテッド | 飲料製造装置のための通気バルブ |
FR2888629B1 (fr) * | 2005-07-15 | 2007-09-28 | Effbe France S A S Soc Par Act | Vanne pour un reservoir, en particulier un reservoir a carburant pour un vehicule automobile |
JP4329769B2 (ja) * | 2006-02-15 | 2009-09-09 | 豊田合成株式会社 | 燃料遮断弁 |
US20100132805A1 (en) * | 2006-04-19 | 2010-06-03 | B/E Intellectual Property | Air vent valve for beverage makers |
US8291929B2 (en) * | 2006-05-16 | 2012-10-23 | GM Global Technology Operations LLC | Dual float rollover valve |
JP5005330B2 (ja) * | 2006-12-15 | 2012-08-22 | 京三電機株式会社 | 燃料流出防止弁 |
DE102008061283A1 (de) * | 2008-12-11 | 2010-07-15 | Innovatun Gmbh | Be- und Entlüftungsventil, Brennfluidtank mit einem solchen Ventil und Verfahren zur Be- und Entlüftung eines Brennfluidtanks |
JP5420482B2 (ja) * | 2010-06-28 | 2014-02-19 | 愛三工業株式会社 | 燃料遮断弁 |
DE102013013213B4 (de) | 2013-08-09 | 2016-07-07 | Kautex Textron Gmbh & Co. Kg | Betriebsflüssigkeitsbehälter mit integriertem Ent- und/oder Belüftungsventil |
WO2015103343A1 (en) * | 2013-12-30 | 2015-07-09 | Robert Charles Cooley | Top fill, fully-integrated pressureless flow-control module operative when tank fluid is frozen |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4209032A (en) * | 1978-05-22 | 1980-06-24 | Mordeki Drori | Air-relief valves |
US4694847A (en) * | 1986-03-07 | 1987-09-22 | Stant Inc. | Roll-over valve with sealing ball |
US4886089A (en) * | 1988-05-27 | 1989-12-12 | Gt Development Corporation | Gas venting valve for liquid tank |
DE4213932C3 (de) * | 1992-04-28 | 1998-07-09 | Kayser A Gmbh & Co Kg | Tankentlüftungsventil |
JPH06156093A (ja) * | 1992-11-24 | 1994-06-03 | Aisan Ind Co Ltd | フロート付フューエルカットオフバルブ |
JP2707396B2 (ja) * | 1993-04-09 | 1998-01-28 | 本田技研工業株式会社 | 燃料タンクの蒸発燃料排出規制装置 |
US5511577A (en) * | 1994-03-02 | 1996-04-30 | Mulric Hydro Projects (Proprietary) Limited | Air release valve |
JP3284746B2 (ja) * | 1994-04-28 | 2002-05-20 | 豊田合成株式会社 | 燃料タンク用フロートバルブ |
US5535772A (en) | 1995-05-01 | 1996-07-16 | Stant Manufacturing Inc. | Tank venting control system |
US5687756A (en) * | 1995-11-08 | 1997-11-18 | Borg-Warner Automotive, Inc. | Vehicle refueling valve |
US5782258A (en) * | 1995-12-11 | 1998-07-21 | Alfmeier Corporation | Vapor recovery fuel tank system |
-
1997
- 1997-09-26 DE DE19742469A patent/DE19742469C2/de not_active Expired - Fee Related
-
1998
- 1998-09-22 MY MYPI98004351A patent/MY122389A/en unknown
- 1998-09-23 EP EP98951460A patent/EP1015268B1/de not_active Expired - Lifetime
- 1998-09-23 JP JP2000513744A patent/JP4262409B2/ja not_active Expired - Fee Related
- 1998-09-23 WO PCT/EP1998/006076 patent/WO1999016633A1/de active IP Right Grant
- 1998-09-23 DE DE59805030T patent/DE59805030D1/de not_active Expired - Lifetime
- 1998-09-23 US US09/486,736 patent/US6347640B1/en not_active Expired - Fee Related
- 1998-09-23 KR KR1020007003278A patent/KR100548671B1/ko not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9916633A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2001518421A (ja) | 2001-10-16 |
DE19742469A1 (de) | 1999-04-15 |
MY122389A (en) | 2006-04-29 |
WO1999016633A1 (de) | 1999-04-08 |
KR100548671B1 (ko) | 2006-02-02 |
US6347640B1 (en) | 2002-02-19 |
KR20010030742A (ko) | 2001-04-16 |
DE19742469C2 (de) | 1999-11-11 |
EP1015268B1 (de) | 2002-07-31 |
DE59805030D1 (de) | 2002-09-05 |
JP4262409B2 (ja) | 2009-05-13 |
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